2666690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 5258736

約数和(自身を除く): 2592046

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 281, 365, 562, 730, 949, 1405, 1898, 2810, 3653, 4745, 7306, 9490, 18265, 20513, 36530, 41026, 102565, 205130, 266669, 533338, 1333345, 2666690]

約数ペア:

[(1, 2666690), (2, 1333345), (5, 533338), (10, 266669), (13, 205130), (26, 102565), (65, 41026), (73, 36530), (130, 20513), (146, 18265), (281, 9490), (365, 7306), (562, 4745), (730, 3653), (949, 2810), (1405, 1898)]